USE IN DETERGENTS OF NEUTRALISED AND/OR AMIDISED POLYMERS CONTAINING CARBOXYL GROUPS

    公开(公告)号:DE3665883D1

    公开(公告)日:1989-11-02

    申请号:DE3665883

    申请日:1986-07-30

    Applicant: BASF AG

    Abstract: Washing agents contain, as additives for inhibiting redeposition and promoting the primary washing action, homopolymers of acrylic acid and of methacrylic acid, copolymers of acrylic acid and methacrylic acid and copolymers which contain, as essential components, (a) an ethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms and (b) acrylic acid, methacrylic acid and/or hydroxy-C2-C6-alkyl esters of ethylenically unsaturated C3-C6-carboxylic acids as copolymerized units, where the homo- and copolymers in the form of the free acids have a weight average molecular weight of from 5000 to 500,000 in the neutralized or amidated form, the carboxyl groups of the homo- and copolymers in each case being partially or completely neutralized with amines of the formula where R is C8-C18-alkyl or R1-O-CH2-(CH2)n-, n is from 1 to 3, R1 is C1-C18-alkyl, R2 and R3 are each H or C1-C18-alkyl and/or from 5 to 50% of the said carboxyl groups being in the form of amides derived from primary and secondary amines of the formula I.

    4.
    发明专利
    未知

    公开(公告)号:DE3528460A1

    公开(公告)日:1987-02-19

    申请号:DE3528460

    申请日:1985-08-08

    Applicant: BASF AG

    Abstract: Washing agents contain, as additives for inhibiting redeposition and promoting the primary washing action, homopolymers of acrylic acid and of methacrylic acid, copolymers of acrylic acid and methacrylic acid and copolymers which contain, as essential components, (a) an ethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms and (b) acrylic acid, methacrylic acid and/or hydroxy-C2-C6-alkyl esters of ethylenically unsaturated C3-C6-carboxylic acids as copolymerized units, where the homo- and copolymers in the form of the free acids have a weight average molecular weight of from 5000 to 500,000 in the neutralized or amidated form, the carboxyl groups of the homo- and copolymers in each case being partially or completely neutralized with amines of the formula where R is C8-C18-alkyl or R1-O-CH2-(CH2)n-, n is from 1 to 3, R1 is C1-C18-alkyl, R2 and R3 are each H or C1-C18-alkyl and/or from 5 to 50% of the said carboxyl groups being in the form of amides derived from primary and secondary amines of the formula I.

    Aqueous quenching medium for hardening metals

    公开(公告)号:DE3429611A1

    公开(公告)日:1986-02-20

    申请号:DE3429611

    申请日:1984-08-11

    Applicant: BASF AG

    Abstract: An aqueous quenching medium for hardening metals by heat treatment contains a solution of 0.1 to 30% by weight of a polyether compound having a molecular weight of more than 5000 and additionally 0.1 to 30% by weight of an at least partially hydrolysed alkali metal metaphosphate and/or of an oligomeric alkali metal phosphate. Only a very labile vapour skin phase or virtually none at all forms in these quenching media when heated metals are cooled.

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